Method and measuring arrangement for monitoring the condition of a grindstone of a wood grinder

Method for monitoring the condition of a grindstone (4) of a wood grinder (1)， characterized in that a temperature profile (T. prof) for the grinding surface (19) of the grinding stone (19) is determined over the entire axial length of the grinding stone (4)，a variable (GST) representing at least one temperature specification of the grinding surface (19) of the grinding stone (4) based on said temperature profile (T prof) is determined，the quantity (GST) representing the said temperature specification with a reference quantity (GST) corresponding to this temperature specification (GST) REF) is compared and，if said variable representing the temperature indication (GST) differs in a predetermined manner from said reference variable (GST REF)， the status associated with the condition of the grindstone (4) is identified as abnormal at least on a part of the grinding surface (19).